An automatic detection device for mobile phone motherboard

Abstract

The present invention discloses an automatic detection device for a mobile phone motherboard, comprising a base, a turntable is rotatably provided on the base, four clamping platforms are evenly distributed on the circumference of the turntable, a loading device and a rotating arm are respectively provided on two sides of the base, a sliding plate is provided under the rotating arm, two detection needles are provided under the sliding plate, and a discharge plate is provided in front of the base; two parallel sliding grooves are opened on the clamping platform, a clamping wheel is slidably provided on each of the sliding grooves, swingable clamping plates are provided on both sides of the clamping platform, the ends of the clamping plates are inclined toward the direction of the sliding grooves, and the front ends of the clamping plates are connected to the clamping platforms through torsion springs.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic device detection, in particular to an automatic detection device for mobile phone mainboards. Background Art

[0002] With the continuous expansion of the smartphone market and the rapid development of technology, the quality and stability of the mobile phone motherboard, as the core component of the mobile phone, directly affect the overall performance of the mobile phone. Therefore, the inspection of the mobile phone motherboard is particularly important during the mobile phone manufacturing process.

[0003] Existing mobile phone motherboard detection devices usually use some basic mechanical structures and electronic devices to realize the detection of the motherboard. These devices usually include a clamp to fix the motherboard and one or more detection probes. The motherboard is manually placed on the clamp, and then the position of the detection probe is adjusted to contact the detection point on the motherboard. The mobile phone motherboard detection device in the prior art has a low degree of automation, and most operations still need to be completed manually. This not only increases labor costs, but also easily leads to operational errors, affecting the accuracy of the test results. The detection devices in the prior art often lack precise positioning and adjustment mechanisms. Due to the large number of detection points on the mobile phone motherboard and the complex layout, it is difficult for traditional detection devices to achieve precise alignment of each detection point. This not only reduces the detection efficiency, but may also cause some detection points to be unable to be accurately detected, thereby affecting the overall detection results.

[0004] Furthermore, existing mobile phone motherboard detection devices often lack effective cleaning and protection mechanisms. During the manufacturing process, the motherboard surface is easily contaminated with dust and impurities, which can affect the contact of the detection probes and lead to inaccurate test results. Furthermore, the lack of protection mechanisms makes the detection device susceptible to external environmental influences, reducing its stability and reliability.

[0005] Therefore, providing an automated testing device for mobile phone motherboards is of great significance in improving production efficiency and ensuring product quality in the mobile phone manufacturing industry. With the continuous development of science and technology, it is believed that this efficient and accurate testing device will play an increasingly important role in the future mobile phone manufacturing process. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solutions: an automated detection device for a mobile phone motherboard, comprising a base, a turntable rotatably provided on the base, four clamping platforms evenly distributed on the circumference of the turntable, a loading device and a rotating arm provided on both sides of the base, a sliding plate provided under the rotating arm, two detection needles provided under the sliding plate, and a discharge plate provided in front of the base;

[0007] Two parallel slide grooves are provided on the clamping table, and a clamping wheel is slidably provided on each slide groove. Swingable clamping plates are provided on both sides of the clamping table, and the ends of the clamping plates are inclined toward the slide grooves. The front ends of the clamping plates are connected to the clamping table through torsion springs.

[0008] Furthermore, as a preference, a cleaning fan is provided at the upper rear portion of the base, and the cleaning fan is aligned with the circumferential position of the clamping table on the turntable.

[0009] Furthermore, preferably, a visual recognition device is provided on the upper portion of the base close to the rotating arm, and the visual recognition device is aligned with the circumferential position of the clamping table on the turntable.

[0010] Furthermore, as a preference, the sliding plate is slidably disposed below the rotating arm, and the rotating arm is further provided with a first screw rod capable of driving the sliding plate to slide.

[0011] Furthermore, as a preference, a connecting gear is rotatably provided in the sliding plate, two sliders are provided under the connecting gear, and the two detection needles are fixed under the two sliders respectively;

[0012] A driving gear capable of driving the connecting gear to rotate is provided on one side of the sliding plate;

[0013] The connecting gear is provided with a second screw rod capable of driving the two sliders to move closer or farther away.

[0014] Furthermore, as a preference, the slide groove passes through the bottom of the turntable, and the two clamping wheels corresponding to the same clamping table are connected together at the bottom of the turntable through a connecting block, and the connecting block is connected to a push rod facing the center of the turntable;

[0015] A concentric fixed disk is fixed to the bottom of the turntable, and the fixed disk is fixed on the base. A guide groove is opened in the fixed disk, and the end of each push rod is slidably connected to the guide groove.

[0016] Furthermore, as a preference, a guide shaft is fixed to each of the four corners of the clamping platform, the guide shaft slidably passes through the bottom of the turntable, and the bottoms of each guide shaft corresponding to the same clamping platform are fixed together by a connecting plate;

[0017] The outer wall of the guide shaft between the connecting plate and the bottom of the turntable is covered with a spring, and the elastic force of the spring causes the clamping table to fit downward onto the turntable.

[0018] Furthermore, as a preference, a through slot is opened in the center of the connecting plate, a push shaft is fixed to the bottom of the connecting block, the lower end of the push shaft passes through the through slot, and a push rod passes through the bottom of the push shaft in a slidable and rotationally restricted manner.

[0019] Furthermore, as a preference, a lifting cylinder is provided on the base under the turntable near one side of the rotating arm.

[0020] Furthermore, preferably, the clamping wheel 32 is rotatably connected to the connecting block 35 , and the cross section of the clamping wheel 32 is an inverted trapezoid.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention achieves rapid and accurate testing of mobile phone motherboards through automation, significantly improving testing efficiency. The precise coordination of components such as the clamping table, rotating arm, and slide plate makes the testing process smoother, reducing waiting and adjustment time, thereby improving overall production efficiency.

[0023] The present invention pushes the clamping table and the mainboard thereon to rise through the rising action of the lifting cylinder, so that the contacts of the mainboard are precisely docked with the detection needles. This rising mechanism not only ensures close contact between the mainboard and the detection needles, but also avoids deviation of the detection needles due to lifting after they are aligned with the contacts.

[0024] Existing detection devices often require complex mechanical transmission systems and electronic control systems to drive the clamping wheel. However, the present invention utilizes guide grooves to guide the movement of the clamping wheel, making it more direct and efficient. This not only reduces the number of transmission components, lowering the complexity and maintenance costs of the device, but also improves the stability and reliability of the entire system. Because the guide grooves have a fixed trajectory, the clamping wheel can be precisely positioned and moved along this trajectory during movement. This avoids the problem of clamping wheel position deviation caused by transmission system errors or insufficient control precision in traditional devices.

[0025] This invention achieves reliable clamping of mobile phone motherboards through an innovative clamping plate and clamping wheel design. The tilted clamping plate, driven by a torsion spring, adapts to the shape of motherboards of varying sizes, ensuring they are securely clamped in the center of the clamping table and allowing them to be ejected after they pass over the clamping plate. This not only improves detection stability but also significantly reduces detection errors caused by varying motherboard sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of an automated detection device for mobile phone motherboards;

[0027] Figure 2 It is a structural diagram of the upper part of the clamping table;

[0028] Figure 3 It is a structural diagram of the lower part of the rotating arm;

[0029] Figure 4It is a structural diagram of the upper part of the turntable;

[0030] Figure 5 It is a structural diagram of the lower part of the turntable;

[0031] Figure 6 It is a structural diagram of the turntable cross section;

[0032] Figure 7 It is a structural schematic diagram of an enlarged cross section of the turntable;

[0033] Figure 8 A schematic diagram for controlling the two detection probes to align with the detection contacts of the mainboard;

[0034] In the figure: 1. Base; 2. Turntable; 21. Fixed plate; 22. Guide groove; 23. Push rod; 24. Push shaft; 3. Clamping table; 31. Slide groove; 32. Clamping wheel; 33. Clamping plate; 34. Guide shaft; 35. Connecting block; 36. Spring; 37. Connecting plate; 38. Through groove; 4. Loading device; 5. Cleaning fan; 6. Visual recognition device; 7. Rotating arm; 71. First screw rod; 8. Slide plate; 81. Gear; 82. Second screw rod; 83. Slider; 84. Driving gear; 9. Detection needle; 10. Discharge plate; 11. Lifting cylinder. DETAILED DESCRIPTION

[0035] See also Figure 1 and Figure 2 In an embodiment of the present invention, an automated detection device for a mobile phone motherboard includes a base 1, a turntable 2 is rotatably provided on the base 1, four clamping platforms 3 are evenly distributed on the circumference of the turntable 2, a loading device 4 and a rotating arm 7 are respectively provided on both sides of the base 1, a sliding plate 8 is provided under the rotating arm 7, two detection needles 9 are provided under the sliding plate 8, and a discharge plate 10 is provided in front of the base 1;

[0036] The clamping platform 3 is provided with two parallel chutes 31, each slidably supported by a clamping wheel 32. Swingable clamping plates 33 are provided on either side of the clamping platform 3. The distal ends of the clamping plates 33 are tilted toward the chutes 31, and the front ends of the clamping plates 33 are connected to the clamping platform 3 via torsion springs. The motherboard to be inspected is placed on the clamping platform 3 via the loading device 4. The clamping wheels 32 push the motherboard toward the distal ends of the clamping plates 33, securing and aligning the motherboard under the action of the torsion springs. The turntable 2 rotates, moving the clamping platform 3, with the motherboard clamped, to a position close to the rotating arm 7. The rotating arm 7 then rotates, aligning the inspection needle 9 under the sliding plate 8 with the motherboard for inspection.

[0037] In this embodiment, a cleaning fan 5 is provided at the upper rear portion of the base 1, aligned with the circumferential distribution of the clamping platforms 3 on the turntable 2. After the motherboard is secured to the clamping platforms 3 and before it is moved closer to the rotating arm 7, the cleaning fan 5 can clean debris from the motherboard surface, preventing it from affecting the detection of the detection needle 9.

[0038] In this embodiment, a visual recognition device 6 is provided on the upper portion of the base 1 near the rotating arm 7. This device is aligned with the circumferential distribution of the clamping platforms 3 on the turntable 2 and is higher than the height of the rotating arm 7. In other words, when the motherboard on the clamping platform 3 moves to the side of the rotating arm 7, the visual recognition device 6 can locate and identify the motherboard, accurately determining the position of the motherboard's detection contacts, thereby controlling the movement path of the rotating arm 7.

[0039] See also Figure 3 In this embodiment, the sliding plate 8 is slidably disposed below the rotating arm 7 , and the rotating arm 7 is further provided with a first screw rod 71 capable of driving the sliding plate 8 to slide.

[0040] In this embodiment, a connecting gear 81 is rotatably provided in the sliding plate 8, and two sliders 83 are provided under the connecting gear 81. The two detection needles 9 are fixed under the two sliders 83 respectively.

[0041] A driving gear 84 capable of driving the connecting gear 81 to rotate is provided on one side of the sliding plate 8;

[0042] The connecting gear 81 is provided with a second screw rod 82 capable of driving the two sliders 83 to move closer or further away.

[0043] The rotating arm 7 can adjust the rotating angle, the position of the sliding plate 8 under the rotating arm 7 can be adjusted through the first screw rod 71, the angle of the connecting gear 81 can be adjusted through the driving gear 84, and the distance between the two sliders 83 can be adjusted through the second screw rod 82. By adjusting the above parameters, the two detection needles 9 can be positioned at any two points on the mainboard to ensure that the detection needles 9 can contact different detection points of mainboards of different specifications.

[0044] See also Figure 4 and Figure 5 In this embodiment, the slide groove 31 extends through the bottom of the turntable 2, and the two clamping wheels 32 corresponding to the same clamping platform 3 are connected together at the bottom of the turntable 2 through a connecting block 35. The connecting block 35 is connected to a push rod 23 facing the center of the turntable 2.

[0045] A concentric fixed plate 21 is fixed to the bottom of the turntable 2 , and the fixed plate 21 is fixed to the base 1 . A guide groove 22 is provided in the fixed plate 21 , and the end of each push rod 23 is slidably connected to the guide groove 22 .

[0046] That is, when the turntable 2 rotates, the end of each push rod 23 slides along the track of the guide groove 22, thereby pushing the connecting block 35 and the corresponding clamping wheel 32 to slide back and forth, so that the clamping wheel 32 changes the position of clamping the mainboard.

[0047] See also Figure 6 and Figure 7 In this embodiment, a guide shaft 34 is fixed to each of the four corners of the clamping platform 3. The guide shaft 34 can slide through the bottom of the turntable 2, and the bottom of each guide shaft 34 corresponding to the same clamping platform 3 is fixed together by a connecting plate 37;

[0048] A spring 36 is sleeved on the outer wall of the guide shaft 34 between the connecting plate 37 and the bottom of the turntable 2. The elastic force of the spring 36 makes the clamping platform 3 fit downward onto the turntable 2.

[0049] A through slot 38 is formed in the center of the connecting plate 37. A push shaft 24 is fixed to the bottom of the connecting block 35. The lower end of the push shaft 24 passes through the through slot 38. The push shaft 24 passes through the push rod 23 below so as to be slidable and rotationally restricted.

[0050] A lifting cylinder 11 is provided on the base 1 below the turntable 2 at a position close to one side of the rotating arm 7 .

[0051] That is to say, when the turntable 2 rotates to move the clamping table 3 onto the lifting cylinder 11, the lifting cylinder 11 pushes the connecting plate 37 upward, so that the clamping table 3 and the main board connected to it can be lifted up, so that the contacts of the main board fit into the detection needle 9.

[0052] In this embodiment, the clamping wheel 32 is rotatably connected to the connecting block 35 and has an inverted trapezoidal cross-section. Because the clamping wheel 32 is wider at the top and narrower at the bottom, it exerts downward pressure on the edge of the mainboard. Furthermore, the rotatable clamping wheel 32 allows the mainboard to move left and right after being clamped. Consequently, the mainboard is pushed to the center by the elastic force of the clamping plates 33 on either side, achieving centering.

[0053] In specific implementation, the turntable 2 rotates clockwise, and the clamping table 3 corresponding to the position of the feeding device 4 is the first working position, and each 90° rotation corresponds to the second working position, the third working position and the fourth working position;

[0054] When the clamping table 3 is at the first station, the trajectory of the guide groove 22 makes the clamping wheel 32 closest to the center of the turntable 2. At this time, the loading device 4 places the motherboard to be tested between the two clamping plates 33;

[0055] When the clamping table 3 is in the second station, the trajectory of the guide groove 22 causes the clamping wheel 32 to slide away from the center of the turntable 2. The clamping wheel 32 presses against the mainboard and pushes against the clamping plate 33, so that the clamping plate 33 clamps both sides of the mainboard and positions the mainboard at the center of the clamping table 3. At this time, the cleaning fan 5 blows air towards the mainboard to clean the debris on the surface of the mainboard.

[0056] When the clamping table 3 is in the third position, the trajectory of the guide groove 22 keeps the clamping wheel 32 stationary relative to the center of the turntable 2. At this time, after the visual recognition device 6 locates and recognizes the mainboard, it controls the two detection needles 9 to align with the detection contacts of the mainboard. The lifting cylinder 11 lifts the clamping table 3 so that the detection needles 9 contact the detection contacts of the mainboard to detect the mainboard. After the detection is completed, the lifting cylinder 11 descends, and the clamping table 3 is attached to the turntable 2 under the action of the spring 36.

[0057] When the clamping table 3 is at the fourth station, the trajectory of the guide groove 22 causes the clamping wheel 32 to continue to slide away from the center of the turntable 2, and pushes the mainboard away from the position of the clamping plate 33. The mainboard falls from the clamping table 3 and slides out from the discharge plate 10, completing the entire inspection process.

[0058] Also, see Figure 8 The specific method of controlling the two detection needles 9 to align with the detection contacts of the mainboard also includes:

[0059] S1. The visual recognition device 6 determines two contact points A and B on the mainboard and connects the two points A and B to form a reference line L.

[0060] S2, control the rotating arm 7 to rotate so that the rotating arm 7 intersects the midpoint of L;

[0061] S3, control the first screw rod 71 to move the sliding plate 8 until the center of the circle coincides with the midpoint of L;

[0062] S4, control the driving gear 84 to rotate the connecting gear 81 until the straight line formed by the two sliders 8 coincides with L;

[0063] S5. Control the second screw rod 82 so that the distance between the two sliders 8 is equal to the length of L.

[0064] Through the above steps, the two detection needles can be quickly and accurately aligned with the positions of the two detection contacts on the mainboard.

[0065] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automated detection device for a mobile phone motherboard, comprising a base (1), characterized in that: A turntable (2) is rotatably provided on the base (1), four clamping platforms (3) are evenly distributed on the circumference of the turntable (2), a loading device (4) and a rotating arm (7) are respectively provided on both sides of the base (1), a sliding plate (8) is provided under the rotating arm (7), two detection needles (9) are provided under the sliding plate (8), and a discharge plate (10) is provided in front of the base (1); The clamping platform (3) is provided with two parallel sliding grooves (31), each of the sliding grooves (31) is slidably provided with a clamping wheel (32), and swingable clamping plates (33) are provided on both sides of the clamping platform (3), the ends of the clamping plates (33) are inclined toward the sliding grooves (31), and the front ends of the clamping plates (33) are connected to the clamping platform (3) via torsion springs; The slide groove (31) penetrates the bottom of the turntable (2), and two clamping wheels (32) corresponding to the same clamping platform (3) are connected together at the bottom of the turntable (2) through a connecting block (35), and a push rod (23) facing the center of the turntable (2) is connected to the connecting block (35); A concentric fixed plate (21) is fixed at the bottom of the turntable (2), the fixed plate (21) is fixed on the base (1), a guide groove (22) is provided in the fixed plate (21), the end of each push rod (23) is slidably connected to the guide groove (22), the guide groove (22) has a fixed track, and the clamping wheel (32) is positioned and moved along the track during the movement process; A guide shaft (34) is fixed to each of the four corners of the clamping platform (3), and the guide shaft (34) can slidably penetrate the bottom of the turntable (2), and the bottom of each guide shaft (34) corresponding to the same clamping platform (3) is fixed together by a connecting plate (37); A spring (36) is sleeved on the outer wall of the guide shaft (34) between the connecting plate (37) and the bottom of the turntable (2), and the elastic force of the spring (36) causes the clamping table (3) to fit downward onto the turntable (2); A lifting cylinder (11) is provided on a base (1) below the turntable (2) at a position close to one side of the rotating arm (7); The sliding plate (8) is slidably arranged below the rotating arm (7), and the rotating arm (7) is also provided with a first screw rod (71) capable of driving the sliding plate (8) to slide; A connecting gear (81) is rotatably provided in the sliding plate (8), two sliding blocks (83) are provided under the connecting gear (81), and the two detection needles (9) are respectively fixed under the two sliding blocks (83); A driving gear (84) capable of driving the connecting gear (81) to rotate is provided on one side of the sliding plate (8); The connecting gear (81) is provided with a second screw rod (82) capable of driving the two sliders (83) to move closer or further away; The mobile phone mainboard is clamped by the clamping plate (33) and the clamping wheel (32). The clamping plate (33) is designed to be inclined and to be adaptively adjusted according to the shapes of mainboards of different sizes under the action of a torsion spring, thereby ensuring that the mainboard is clamped in the middle of the clamping table (3). After the mainboard passes over the clamping plate (33), the mainboard can also be discharged.

2. The automatic detection device for mobile phone motherboard according to claim 1, characterized in that: A cleaning fan (5) is provided at the upper rear portion of the base (1), and the cleaning fan (5) is aligned with a circumferential position of the mounting clamping table (3) on the turntable (2).

3. The automatic detection device for mobile phone motherboard according to claim 1, characterized in that: A visual recognition device (6) is provided on the upper part of the base (1) close to the rotating arm (7), and the visual recognition device (6) is aligned with the circumferential position of the clamping table (3) on the turntable (2).

4. The automatic detection device for mobile phone motherboard according to claim 1, characterized in that: A through slot (38) is provided at the center of the connecting plate (37), a push shaft (24) is fixed to the bottom of the connecting block (35), the lower end of the push shaft (24) passes through the through slot (38), and the push rod (23) is passed through the lower part of the push shaft (24) in a slidable and rotationally restricted manner.

5. The automatic detection device for mobile phone motherboard according to claim 1, characterized in that: The clamping wheel (32) is rotatably connected to the connecting block (35), and the cross section of the clamping wheel (32) is an inverted trapezoid.

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